Abstract: An electromagnetic brake for an input shaft of a vehicle transmission is disclosed. The brake includes an armature separated from an electromagnetic coil pole face by a controlled air gap. A spring release feature ensures precise armature disengagement when the brake is deactivated. A wear compensation feature maintains uniformity of the air gap.

Abstract: A driven disk in a clutch comprises a hub having a flange extending radially therefrom and having a spring cover affixed thereto. The spring cover defines at least one spring cavity therein and has two ends. Opposing first portions of the two ends define a first cavity length, and second opposing portions of the two ends define a second cavity length. A first spring is retained within the spring cavity wherein the first spring bears against the first end portions defining the first length. A second spring is also retained within the spring cavity wherein the second spring bears against the second end portions defining the second length.

Abstract: A driven disk in a clutch comprises a hub having a flange extending radially therefrom and having a spring cover affixed thereto. The spring cover defines at least one spring cavity therein and has two ends. Opposing first portions of the two ends define a first cavity length, and second opposing portions of the two ends define a second cavity length. A first spring is retained within the spring cavity wherein the first spring bears against the first end portions defining the first length. A second spring is also retained within the spring cavity wherein the second spring bears against the second end portions defining the second length.

Abstract: A dual mass flywheel and clutch system for minimizing torsional vibration levels during engine start-up and during low speed engine operation where the rotational moment of inertia of a clutch input assembly is minimized to raise the torsional natural frequency of the dual mass clutch system above the engine firing frequency when the clutch is disengaged to reduce the level of torsional vibration during engine start-up. After engine start-up, the dual mass clutch system is engaged and the torsional natural frequency of the clutch system returns to a lower frequency due to the rotation of the clutch output assembly thereby effectively reducing the torsional vibration levels in the vehicle driveline in a normal manner.

Abstract: A structure for positively retaining a journal portion of a spindle in a tube portion of a vehicle axle housing includes a transverse aperture formed through the tube portion near the outer end thereof. The aperture extends partially into the interior of the tube portion and is defined by a radius of curvature. A generally hollow cylindrical spindle is connected to the end of the tube portion. The spindle includes a journal portion which is telescopically received within the hollow tube portion. An annular groove is formed in the outer surface of the journal portion of the spindle near the inner end thereof. The groove is defined by a radius of curvature which is substantially larger than the radius of curvature defining the transverse aperture. When the spindle is inserted within the tube portion, the groove is aligned with the transverse aperture. A threaded fastener is disposed within the transverse aperture.

Abstract: An apparatus for sensing the angular velocity of a vehicle wheel includes a rotor disk, a mounting bracket for attachment to the inner wall of an axis housing, and an electromagnetic sensor. The disk is coupled to the axle shaft for rotation and is rotatably retained in a cavity formed in the bracket. A mounting tube is also formed in the mounting bracket for retaining the electromagnetic sensor in close proximity to a periphery of the disk which has a plurality of generally radially extending evenly spaced indicating means formed thereon. The cavity limits axial movement of the disk to maintain the air gap between the disk and the sensor. The disk can be coupled to the axle by a pair of rings and a tab and slot system to limit radial movement of the disk.